Automatic Transmission Fluid Deterioration Detected
2006-2011 BMW 325i 3.0L I6 N52
Description
The transmission fluid condition sensor or monitoring algorithm has determined the ATF has deteriorated beyond serviceable limits.
Symptoms
- Check Engine Light or service reminder
- Shift quality degradation
- Transmission temperature running higher
- Dark or burnt-smelling fluid
- TCC shudder may develop
- Increased shift time
Common Causes
- Extended fluid service interval exceeded
- Overheating episodes degrading fluid
- Contamination from internal wear
- Wrong fluid type previously used
- Fluid oxidation from age
Diagnostic Steps
- Check ATF color, smell, and clarity
- Read fluid condition sensor data
- Monitor transmission temperatures
- Test fluid viscosity if possible
- Review fluid service history
Repair Notes
Perform transmission fluid and filter service immediately. If fluid is severely burnt, multiple fluid exchanges may be needed. Use only manufacturer-specified ATF.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3068 on Other Vehicles
Common Questions
What does code P3068 mean on a 2006-2011 BMW 325i?
P3068 stands for "Automatic Transmission Fluid Deterioration Detected". The transmission fluid condition sensor or monitoring algorithm has determined the ATF has deteriorated beyond serviceable limits.
What are the symptoms of P3068 on a BMW 325i?
Common symptoms of P3068 include: Check Engine Light or service reminder, Shift quality degradation, Transmission temperature running higher, Dark or burnt-smelling fluid, TCC shudder may develop, Increased shift time.
What causes P3068 on a 2006-2011 BMW 325i?
Common causes of P3068 include: Extended fluid service interval exceeded, Overheating episodes degrading fluid, Contamination from internal wear, Wrong fluid type previously used, Fluid oxidation from age.